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MCP Testing Kit

@thoughtspot

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基本情報

カテゴリ

開発者ツール

ライセンス

MIT

トランスポート

stdio

作者

thoughtspot

MCP Testing Kit について

The testing library you need to test your MCP servers

MCP Testing Kit の設定

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このサーバーの README には解析可能な MCP 設定ブロックが含まれていません。インストール手順はリポジトリをご確認ください。

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MCP Testing Kit のツール

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ツールは README から自動的に抽出されます。メンテナーは ## Tools という見出しの下に記載することで、このタブに反映できます。

概要

What is mcp-testing-kit?

mcp-testing-kit is a lightweight TypeScript testing library that provides utilities to connect to an MCP server instance, send requests, receive notifications, and assert server behavior. It works with any testing framework (vitest, jest, etc.) and is designed for developers who need to test Model Context Protocol (MCP) servers.

How to use mcp-testing-kit?

Install as a dev dependency using npm i -D mcp-testing-kit. Import the connect and close functions, create an MCP server instance, call connect(server) to get a mock client, use the client methods (e.g., callTool, listTools) to interact with the server, and call close(server) to clean up after each test.

Features of mcp-testing-kit

  • Works with any testing framework (vitest, jest, etc.)
  • Lightweight, provides "just enough" utilities to test an MCP server
  • Full TypeScript support
  • Direct transport layer (no HTTP/SSE dependency)

Use cases of mcp-testing-kit

  • Unit testing MCP server tools, resources, and prompts
  • Verifying server responses to JSON-RPC requests
  • Integration testing without setting up an actual network transport
  • Automating server behavior assertions in CI pipelines

よくある質問

1

What testing frameworks does mcp-testing-kit support?

It works with any testing framework, such as vitest, jest, and others.

2

Does it require running an actual MCP server over HTTP/SSE?

No. It creates a dummy transport layer that connects directly to the MCP server instance, bypassing HTTP/SSE.

3

What methods are available on the returned client?

The `connect` function returns a client with methods: `listTools`, `callTool`, `listResources`, `listPrompts`, `getPrompt`, `onNotification`, `onError`, `onProgress`, and `sendToServer`.

4

How do I clean up after a test?

Use the `close(server)` function to close the MCP server instance, typically in an `afterEach` hook.

5

Is mcp-testing-kit written in TypeScript?

Yes, it is built with TypeScript and provides type definitions.

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